By working methodically and communicating well, you can easily bring up wireless links several miles apart.
The farther apart your points are, the harder it is to aim your antennas. Make sure you have enough total gain to overcome the path loss, which you should have calculated by now [Hack #97]. At greater distances, getting the antennas pointed directly at each other can be quite tricky. Here is a list of techniques that might help you get your dishes pointed where they need to be:
It can take all day to properly align antennas at a great distance, but it can also be fun, with the right group of people. Just take your time, think about what you're doing, and be sure to leave time at the end of the day to celebrate!
Bluetooth, Mobile Phones, and GPS
Network Discovery and Monitoring
Wireless Network Design
Appendix A. Wireless Standards
Appendix B. Wireless Hardware Guide